Window fastener



.lilly 296, 1932. L.. PAT 1,868,949

wINnow FASTENER Filed July 17, 1951 Patented July 26, 1.932

PATENT oFFlcE Louis rar, or cmcaoo, ILLINOIS WINDOW 'FASTENEB Application led July 17,

This invention is directed to an improvement in window fasteners, and particularly to a means by which either sash may be moved relative to the other and locked at an appropriate point, the locking means serving to maintain the sash elevated and at the same time prevent its further elevation.

The primary object of the present invention is the revision of a window locking means embo ying two elements to be respectively connected to the sash, these elements cooperating to lock the sash against further upward movement at any particular point, while permitting the sash to be moved reely downwardly at any time, the elements being further provided for such cooperation that the sash may be locked against relative movement when the window 1s closed.

The invention is illustrated in the accompanying drawing, wherein Fig. 1 is a view illustrating the applicatlon of the window fastener.

Fig. 2 is a central vertical section.

Fig. 3 is a detail perspective view of the bracket.

Fig. 4 is a detail elevation of the locking 1n. p Fig. 5 is a. section of same on lines 5--5 of Fig. 4.

Fig. 6 is a detail view of the spring.

The improved locking means comprises a narrow metallic strip 1 formed at the respective ends with openings 2 for the reception of screws wherebyit may besecured vertically of one of the side frame bars 3 of the upper sash of a window. This strip is formed with a lower locking opening 4 and with similar openings 5 at preferably uniformly spaced intervals throughout the length of the strip.

Above the locking opening the material of the strip in line with the particular opening 5 is formed as a channel 6, the bottom 7 of which inclines from the inner surface of the strip 1 to approximately the plane of the louter edge of the opening 5. In other words,

the strip is formed with a series of channels leading to each of the openings 5, the bottom ofwhich channels at their entrant or lower ends are coincident with the inner surface of the strip 1 and from which ends the bottoms 1931. serial No. 551,482.'

-The remaining portion 11 of the bracket 8 is 'at right angles to the portion 9 and is formed with openings 12 for the reception of screws whereby the bracket may be secured to the upper bar 13 of the lower sash. The portion 9 of the bracket is formed near its upper end with an opening 14 in which is itted a. pin 15, preferably provided with an inclined terminal 16 and a button head 1 7. The pin beneath the button head 17 is circumferentially channeled at 18 to permit the engagement of Ione end of a spring 19 therewith,

the spring being formed with a U-recess 20 7 in its upper end to fit in the channel 18. The opposite end of the spring is secured at 21 to the outer Asurface of the portion 9 of the bracket 8', the .spring functioning to hold the pin in the opening 14, with its terminal 16 75 projected beyond the inner surface of the bracket. The portion 9 of the bracket is further formed in transverse alignment with the vopening 15 with depressions 22- t-o provide for holding the pin in inoperative position,

as will later appear.

With the parts in applied position, it will be understood that the bracket 8 is slidably cooperating with the strip 1 so that in the movement of the lower sash with respect to the Vupper sash the bracket 8 slides vertically of the strip 1. During the upward movement of the lower sash, the pin 15 is withdrawn sufficiently to allow the terminal 16 to be flush with the inner surface of the portion 9 of the bracket 8, and when the lower sash has reached the desired elevation, the pin is released and theterminal 16 seats in the adjacent opening 5 which, of course, provides a direct abutment against a further elevation of the lower sash. Thus, the lower sash is locked against being raised any further, though it may be moved downwardly without attention on the part of the operator with respect to the pin 17, as the inclined teris to say, the sash rwhen e evate minal 16 of the in rising on the inclined bot-4v tom 'l of the c annel. 6 will ride over the various openin 5 unt1l the sash 1s completeof the pin is always. in position to cooperate with the inclined bottoms 7 of the channels 6.

When the lower sash has been completely lowered, that is, the window is completely closed, the pin 15 will engage in the opening 4, forming a permanent lock against movement of the sash in the upward direction without withdrawing the pin 15.

When it is desired to dispense with the function of the lock, the pin 15 is bodil withdrawn from the opening 14 against t e tension of the spring 19 and moved slightly to one side to seat in one or the other'of the depressions 23. The piu is thus held from any possible co-operation with the locking strip and the sash is free to move wit-houtx re ard to any locking means whatsoever.

he various parts are preferably constructed of metal or other appropriate material and are further made suiiiciently light to avoid appreciable obstructions on the window and yet of requisite strength to resist attempts to move the window against the locking means.

I claim 1. A window locking means including a strip to be secured to the upper sash, a bracket to be secured to the lower sash, said bracket having edge flanges to form a guide for the strip, said strip being formed with'a plu-- rality of vertically spaced openings and with a. channel leading to each opening and having a bottom inclined upwardly and outwardly with respect to the face of the strip, a pin operating through the bracket and having an inclined terminal, a pivotally mounted spring engaging the pin for normally maintaining the terminal projected in position to engage with any of the openings in the strip, and means on the strip in which the pin ma be laterally moved withthe spring and loc ed to hold the pin out of cooperation with the strip.

2. A locking means for windows comprising a narrow strip formed with an opening near its lower end, a series of vertically spaced openings above said lower opening, t e strip ein further formed with a channel leadingto eac of said vertically spaced openings and having a bottom inclined upwardly and toward the bottom of the particular opening, a bracket channeled to slldably cooperate w1th the strip, a spring pivoted to the bracket and bifurcated at its u per end, a pin havin cated end o the spring, said pin operating through the bracket and having an inclined vterminal to cooperate with the inclined bottoms of the channels in the downward movement of the bracket with respect to the strip, sald pin seating in any of the vertically spaced openings to prevent upward movement of the bracket without interfering with its free downward movement, said pin being further adapted to seat in the lower opening of the strip to lock the bracket with respect to the strip, said bracket being formed with depressions in which when the pivoted spring is swung laterally the pin may be seated to hold the same free of cooperation with the strip.

In testimony whereof I ailix my signature.

LOUIS PAT. v

a groove to receive t e bifur-l 

